Sofa



FIG. 1 is a top plan view of a sofa showing a first embodiment of my design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof, the opposite side being an identical mirror image thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view of the first embodiment;

FIG. 6 is a perspective view of the first embodiment with one of the head rests removed for ease of illustration;

FIG. 7 is a top plan view of a sofa showing a second embodiment of my design;

FIG. 8 is a front elevational view of the second embodiment;

FIG. 9 is a side elevational view of the second embodiment, the opposite side being an identical mirror image thereof;

FIG. 10 is a rear elevational view of a second embodiment;

FIG. 11 is a bottom plan view of the second embodiment; and,

FIG. 12 is a front perspective view of the second embodiment.

The broken lines shown represent stitching. 

The ornamental design for a sofa, as shown and described. 